Which of the following will form the composite function g(f(x)) shown below?
g(f(x))=5(x-7)squared-4
a. f(x)=(x-7)square and g(x)=-4
b. f(x)=xsquared-4 and g(x)=x-7
c. f(x)= x-7 and g(x)= 5xsquared-4
d. f(x)= 5x-4 and g(x)= (x-7)squared

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?